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CC2564C: Bluetooth forum

Vishnuprasad V1
Intellectual 520 points
Part Number: CC2564C
Other Parts Discussed in Thread: CC2564

Hi TI,

Background of the project.

An Audio device which connects to two phones. 

In phone-1 there will be BT+ BLE (profiles HFP, A2DP, AVRCP, BLE-Peripheral).

In phone-2 there will be BT only(HFP)

To phone-1 CC2564C is connected as Master.

To phone-2  CC2564C can have Master/ Slave role.

Question:

To phone-1 will CC2564c be master if the BT is already a Master?

If not is there any provision to switch roles in BLE?

We are trying to do this to make the connection more stable. 

Thanks!

  • +1
    TI__Intellectual 2350 points

    Hello,

    It seems you posted this question twice. We have assigned the first thread to one of our Bluetooth experts and you can refer to that thread for their answer. 

    Regards,

    Jonathan 

  • 0 in reply to Jonathan Cohen
    TI__Intellectual 1145 points

    Hi Vishnu,

    Whichever device initiates the connection is the master in this case. Once connected, assuming the master device allows role switching (be it CC2564 or the other device), you can send a switch role request from CC2564 using the function below from HCIAPI.h

    HCI_Switch_Role(unsigned int BluetoothStackID, BD_ADDR_t BD_ADDR, Byte_t Role, Byte_t *StatusResult);

    This function is called in some of our demos such as the STM32 HFP and A3DP_SNK demos should you need a reference.